Electrical-cable socket or lug



Aug. 1924. v A KE. SCHARPENBERG ELECTRICAL CABLE SOCKET OR LUG Filed DBC. 22. 1920 EWALD SCHAHPENBEBQ.

I TTQBNEK Patented Aug. 26, 1924.

UNITED STATES EWALD SCHARPENBERG, OF WETTER-ON-TI-IE-RUHR, GERMANY.

ELECTRICAL-CABLE SOCKET OR LUG.

Application led December 22, 1920. Serial No. 432,503.

To all whom t may concern Be it known that I, EWALD SGHARPEN- BERG, a citizen of the German Republic, and resident of VVetter-on-the-Ruhr, Germany, have invented certain new and useful Im` provements in Electrical-.Cable Sockets or Lugs, of which the following is a specification.

The object of my present invention is to provide an improved socket or lug for electrical cables, the novel feature of which resides in the use of two sleeves with clamping projections.

In cablesockets or lugs of the well known kind the electrical cable is clamped either by means of a plurality of screws or by means of a clamping jaw provided with a screw.

In my present invention screws are completely omitted and the cable is firmly clamped by means of interengaging sleeves provided with conical projections.

In the drawing I have illustrated one form of embodiment of my invention and in this drawing:

Fig. 1 is a longitudinal section.

Fig. 2 shows a top plan view on the left hand side and a longitudinal section on a lane at right angles to Fig. 1 on the right hand side, and

Fig. 3 shows a rear elevation.

Fig. 4. is a section on line 4.--4 of Fig. 1.

Referring to the drawing, c and b designate two sleeves each of which is provided with a semi-cylindrical projection c, prefer-- ably made of the same length as the sleeves themselves. One half of each sleeve a and is provided with a cylindrical surface, regis-V tering with the inner cylindrical surface of the respective projection c, the second half of the sleeve being tapered to correspond to the tapered outer surface of the semi-cylindrical projections c.

The projection c of each sleeve will be in serted into the flaring tapering portion of the companion sleeve (see Figs. 1 and 3), whereby a true cylindrical passage way d will be produced in both interengaging sleeves.

A cable of substantially larger diameter than the semi-cylindrical portion of the sleeves is inserted into one sleeve, and the second sleeve is then engaged over the end of said cable and into the first sleeve. The second sleeve is then driven into the rst by hammering or other suitable way which decreases the diameter of the opening in the sleeves, and in the position shown in Fig. 1 firmly engages the cable throughout the entire length of both sleeves.

In order to prevent disengagement of the clamping sleeves, I have provided one of them with a tongue c, intende-d to be bent around the other sleeve as shown in Fig. 1 in dotted lines. Y

To facilitate assembling of the sleeves c and b by hammering, each of said sleeves is provided with a surface upon which the blows of the hammer are received.

g is a lug provided with a bore and serving to attach the cable socket by means of a screw.

It will be seen that the use of solder or screws is completely avoided for clamping an electrical cable according to my present invention.

Having now fully described my said invention, what I claim and desire to secure by Letters Patent, is:

1. A cable terminal, comprising two sleeves having cable receiving openings, a projection on each sleeve adapted to engage in the cable receiving opening of the other sleeve and form therewith a cylindrical opening extending through the sleeves in in- .terengaged relation.

2. A cable lug, comprising two sleeves formed with cable receiving openings hav ing a portion semi-cylindrical, the remaining portion of larger radius and tapered from end to end, each sleeve being formed with a projection adapted to t in the enlarged tapered portion of the opening in the other sleeve and cooperate therewith in engaged relation to form a cylindrical opening through the sleeves.

3. A cable terminal, comprising two sleeves having cable receiving openings, a projection formed on each sleeve adapted to engage in the cable receiving opening of the other sleeve and form therewith a cylindrical opening extending through the sleeves in in terengaged relation, and means for locking the sleeves in said interengaged relation.

4. A cable terminal, comprising a pair of sleeves having cable receiving passages, a portion of the passage of each sleeve being of partial cylindrical shape and the remaining portion having a substantially larger dimension than the first mentioned portion, and a projection on each sleeve adapted to engage in the enlarged portion of the other sleeve and cooperate with said sleeve in engage@ relation to 'form a cylindrical passage therein.

5. A Cable terniinzil, comprising zt pair of Sleeves formed with cable Yreceiving openings having n portion enlarged, said sleeves having projections adapted to t in the enlarged portions ot' the cable receiving openings and form a Cylindrical opening when in i ilar'portion of the sleeve to form a oyhnengaged relation. Y v

6. A cable terminal, comprising two sleeves, each toi-ined with a cable receiving Opening, n portion which is semi-cylindrical, and the remaining portion is of larger radius and tapered from end to end, and a projeetion formed on each Sleeve having' an interior semi-cylindrical Surface conxiai with and continuing from the Semi-cylindrica portion of the opening in the sleeve and an outer surface concentric VWith the inner and tapered Jfrom end to end, whereby when interengagecl the projection on one sleeve Will t in the portion of the other sleeve having the larger radius and the semi-cylindrical snrfacethereof will cooperate With the si1n drieal opening therethrough. y Y

In testimony whereof I have hereunto set my hand in presence of two Witnesses.v

EVALD SCHARPENBERG. VVitneSses 'i JAKOB RICHTER, FRITZ BIMLEREIB. 

